By Kurzweil Accelerating Intelligence

Researchers from three universities are proposing to add a dimension to 3D printing by developing “4D” materials that can exhibit behavior that changes over time.

Imagine an automobile coating that changes its structure to adapt to a humid environment or a salt-covered road, better protecting the car from corrosion. Or consider a soldier’s uniform that could alter its camouflage or more effectively protect against poison gas or shrapnel upon contact.

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